the 1985 Tokai catalog

Classic noise free rich, full sounding Phaser

a Tokai brochure

This effects device employs a Tokai original phase shift circuit that creates a smooth, deep chorus and an expansive tremolo like that produced by a rotating speaker. The TPH-1, equipped with an original circuit that can regulate the feedback volume (resonance) on a normal phase effect, affords a wider variety of expression.